There is no way that there is a 12" disparity when calculating the measurements of the frame from the outside in.

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I don't know if this is really what ProKennex was doing, but 12 sq. in. is reasonable for the area of the front facing of a racquet's hoop. (I know the "measure from the outside" explanation is used sometimes around here to explain a 3-sq-in difference, but that isn't reasonable!)

I noticed that myself when I first obtained one years ago and it had me puzzled too...perhaps they thought since they messed up on the frame they may as well be consistent and apply it to the bumper as well...

i stopped wondering and just enjoy hitting w/ the stick whenever i take it out of the bag which is quite often these days...my rotation of sticks is narrowing considerably recently. i find myself swapping btwn the POG Tour MidPlus, the Black Ace & the Rossi F200. such different playing characteristics, but all so enjoyable in their own unique way!